All Questions
Tagged with diy battery-operated
6 questions
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Use 2s LiPo Battery as Battery Cell for Microcontroller
Is there a convenient way to use a large 2s LiPo battery (such as this one) as a power source for a microcontroller and LED strip? Specifically I'm looking for the ability to seamlessly switch between ...
- 111
1
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1
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How do I calculate the type and size of battery to use for this solar-powered USB charger?
I've been out of the electrical mathematics for a while and want to see what battery I need to do this.
5 V USB output, 5 V DC solar power panel (I do have two I could use together, assuming the ...
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55
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Analog motion triggered alarm design (amateur) - Seeking professional's advice
I've designed a circuit and I want to confirm if it will work. Below is the working:
A very low current, battery powered motion alarm.
User can set 3 timers (srm delay, alarm go off delay, alarm ...
- 673
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2
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DIY portable bluetooth speaker; charging/battery question
I'm new to this and i'm doing my first real build for a friend. What I got so far:
Amp: ZK-TB21 Here
BMS 3s 40A balance Here
18 18650 battery on 3S pack
2 x 25W generic speaker and 1x30w tangband ...
- 1
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1
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Replace UR battery by IMR with lower mAh [closed]
I am replacing a shaver’s battery, a Braun Silk Epil 5.
It uses a Li-Ion battery manufactured by Sanyo for Braun.
According to my research it must be a UR Battery like the UR18500L :
...
- 11
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1
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137
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Understanding Power/Current/Voltage drawn by LED Strips
I am trying to create a LED lamp which will be powered up by a battery. Lets assume I want it to run the lamp for 1hr. My LED Strips operate at 12V with 19.2W/M. I am using around 1.7 Meters(198 LEDs) ...
